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Intro to Unit Circle Part 2

Total questions: 76

Worksheet time: 6hrs 51mins

Name
Class
Date
1.

Add:

π3+2π\frac{\pi}{3}+2\pi

a)

7π3\frac{7\pi}{3}

b)

5π3-\frac{5\pi}{3}

c)

3π3\frac{3\pi}{3}

d)

7π6\frac{7\pi}{6}

2.

Subtract:

π32π\frac{\pi}{3}-2\pi

a)

7π3\frac{7\pi}{3}

b)

5π3-\frac{5\pi}{3}

c)

3π3\frac{3\pi}{3}

d)

7π6\frac{7\pi}{6}

3.

Add:

3π4+2π\frac{3\pi}{4}+2\pi

a)

5π4\frac{5\pi}{4}

b)

11π8\frac{11\pi}{8}

c)

11π4\frac{11\pi}{4}

d)

5π4-\frac{5\pi}{4}

4.

Subtract:

3π42π\frac{3\pi}{4}-2\pi

a)

5π4\frac{5\pi}{4}

b)

11π8\frac{11\pi}{8}

c)

11π4\frac{11\pi}{4}

d)

5π4-\frac{5\pi}{4}

5.

Add:

5π6+2π-\frac{5\pi}{6}+2\pi

a)

7π6-\frac{7\pi}{6}

b)

7π6\frac{7\pi}{6}

c)

17π6-\frac{17\pi}{6}

d)

3π6-\frac{3\pi}{6}

6.

Subtract:

5π62π-\frac{5\pi}{6}-2\pi

a)

7π6-\frac{7\pi}{6}

b)

7π6\frac{7\pi}{6}

c)

17π6-\frac{17\pi}{6}

d)

3π6-\frac{3\pi}{6}

7.

The POSITIVE co-terminal angle for 120°-120\degree is (a)   degrees.

8.

The NEGATIVE co-terminal angle for 120°-120\degree is (a)   degrees.

9.

The POSITIVE co-terminal angle for 300°300\degree is (a)   degrees.

10.

The NEGATIVE co-terminal angle for 300°300\degree is (a)   degrees.

11.

The POSITIVE co-terminal angle for 170°170\degree is (a)   degrees.

12.

The NEGATIVE co-terminal angle for 170°170\degree is (a)   degrees.

13.

The POSITIVE co-terminal angle for 14°-14\degree is (a)   degrees.

14.

The NEGATIVE co-terminal angle for 14°-14\degree is (a)   degrees.

15.

Find the POSITIVE co-terminal angle for:

π2\frac{\pi}{2}

a)

5π4\frac{5\pi}{4}

b)

5π2\frac{5\pi}{2}

c)

4π4\frac{4\pi}{4}

d)

3π2-\frac{3\pi}{2}

16.

Find the NEGATIVE co-terminal angle for:

π2\frac{\pi}{2}

a)

5π4\frac{5\pi}{4}

b)

5π2-\frac{5\pi}{2}

c)

4π4-\frac{4\pi}{4}

d)

3π2-\frac{3\pi}{2}

17.

Find the POSITIVE co-terminal angle for:

3π7\frac{3\pi}{7}

a)

17π7\frac{17\pi}{7}

b)

11π7-\frac{11\pi}{7}

c)

17π14\frac{17\pi}{14}

d)

5π7\frac{5\pi}{7}

18.

Find the NEGATIVE co-terminal angle for:

3π7\frac{3\pi}{7}

a)

17π7\frac{17\pi}{7}

b)

11π7-\frac{11\pi}{7}

c)

17π14-\frac{17\pi}{14}

d)

5π7\frac{5\pi}{7}

19.
Find the reference angle for an angle measuring -310⁰
a)
50⁰
b)
-50⁰
c)
20⁰
d)
40⁰
20.
What is the reference angle for 125 degrees?
a)
235 degrees
b)
125 degrees
c)
75 degrees
d)
55 degrees
21.
Which sketch is -295°?
a)
A
b)
B
c)
C
d)
D
22.
What is the reference angle for 125 degrees?
a)
235 degrees
b)
125 degrees
c)
75 degrees
d)
55 degrees
23.

What is the reference angle for 63°?

a)

117°

b)

207°

c)

63°

d)

153°

24.

What is the reference angle for 240°?

a)

60°

b)

30°

c)

45°

d)

210°

25.

What is the reference angle for -30°?

a)

150°

b)

30°

c)

80°

d)

60°

26.

What is the reference angle for 275°?

a)

85°

b)

95°

c)

-85°

d)

-95°

27.

What is the reference angle for -310⁰?

a)

50⁰

b)

-50⁰

c)

20⁰

d)

40⁰

28.

What is the degree equivalent to -135o

**Find coterminal angles

a)
225o
b)
215o
c)
235o
d)
45o
29.

Given the point (4, -3) on the terminal side of the angle  θ.\theta.  

What is cos θ?\theta?   

a)

4/5

b)

5/4

c)

52-\frac{\sqrt{5}}{2}  

d)

55\frac{\sqrt{5}}{5}  

30.

Given the point (4, -3) on the terminal side of the angle  θ.\theta.  

What is tan θ?\theta?   

a)

-5/3

b)

4/5

c)

-3/5

d)

-3/4

31.

Given the point (-4, -3) on the terminal side of the angle  θ.\theta.  

What is sin θ?\theta?   

a)

3/5

b)

-5/4

c)

-3/5

d)

-4/5

32.

Given the point (6, 3) on the terminal side of the angle  θ.\theta.  

What is sec θ?\theta?   

a)

5\sqrt{5}  

b)

52\frac{\sqrt{5}}{2}  

c)

1/2

d)

2

33.

Given the point (-7, 15\sqrt{15}  ) on the terminal side of the angle  θ.\theta.  

What is cos θ?\theta?   

a)

-8/7

b)

157-\frac{\sqrt{15}}{7}  

c)

-7/8

d)

71515-\frac{7\sqrt{15}}{15}  

34.
Which quadrant is 230⁰ in?
a)
I
b)
II
c)
III
d)
IV
35.
Which quadrant is 120o in?
a)
I
b)
II
c)
III
d)
IV
36.
135° is found in which quadrant?
a)
Quadrant 1
b)
Quadrant 2
c)
Quadrant 3
d)
Quadrant 4
37.
What is the reference angle for 275 degrees?
a)
85 degrees
b)
95 degrees
c)
-85 degrees
d)
-95 degrees
38.
What is the reference angle for 240 degrees?
a)
60 degrees
b)
30 degrees
c)
45 degrees
d)
210 degrees
39.
If an angle is rotated x degrees and the terminal point is (5, -12), then what is the value of sinx?
a)
12/13
b)
-12/13
c)
5/13
d)
-12/5
40.
If an angle is rotated x degrees and the terminal point is (-3,4), then what is the value of cotx
a)
-3/4
b)
-4/3
c)
4/5
d)
-3/5
41.

Find sin(θ) given that the terminal side of θ contains the point (-19, 19).

a)

22\frac{\sqrt{2}}{2}

b)

1-1

c)

2-\sqrt{2}

d)

219-\frac{\sqrt{2}}{19}

42.

Find sec(θ) given that the terminal side of θ contains the point (5,2)\left(\sqrt{5},2\right)  .

a)

355\frac{3\sqrt{5}}{5}

b)

32\frac{3}{2}

c)

52\frac{\sqrt{5}}{2}

d)

53-\frac{\sqrt{5}}{3}

43.

Find cos(θ) given that the terminal side of θ contains the point (9, 6)\left(-9,\ 6\right) .

a)

31313-\frac{3\sqrt{13}}{13}

b)

133-\frac{\sqrt{13}}{3}

c)

32\frac{3}{2}

d)

133\frac{\sqrt{13}}{3}

44.

Given the point (-4, -3) on the terminal side of the angle  θ.\theta.  

What is sin θ?\theta?   

a)

3/5

b)

-5/4

c)

-3/5

d)

-4/5

45.

Given the point (6, 3) on the terminal side of the angle  θ.\theta.  

What is sec θ?\theta?   

a)

5\sqrt{5}  

b)

52\frac{\sqrt{5}}{2}  

c)

1/2

d)

2

46.
a)
A
b)
B
c)
C
d)
D
47.
a)
A
b)
B
c)
C
d)
D
48.

4332\frac{4\sqrt{3}}{3\sqrt{2}}  Fully simplify....

a)
b)
c)
d)
49.

Simplify:
1642214\frac{16\sqrt{42}}{2\sqrt{14}}  

a)

8148\sqrt{14}  

b)

383\sqrt{8}  

c)

838\sqrt{3}  

d)

38\frac{\sqrt{3}}{8}  

50.

Simplify.

a)
b)
c)
d)
51.
How many radians does a circle have?
a)
  360 degrees
b)
2pi radians
c)
pi radians
d)
2 radians
52.
Convert π radians to degrees.
a)
90⁰
b)
180⁰
c)
360⁰
d)
60⁰
53.
Convert 150⁰ to radians
a)
5π/6
b)
3π/4
c)
7π/6
d)
2π/3
54.
Convert 100⁰ to radians
a)
5π/9
b)
π/2
c)
5π/8
d)
5π/6
55.
What is 7π/4 radians in degrees?
a)
300
b)
135
c)
315
d)
45
56.
What is 225  degrees in radians? 
a)
7π/4
b)
5π/4
c)
3π/4
d)
5π/3
57.
What is 2π/3 radians in degrees? 
a)
150
b)
120
c)
180
d)
 30
58.
Convert the following to radians:   
720⁰
a)
b)
c)
59.
Convert the following to degrees:
-8π/5 radians
a)
-288⁰
b)
-260⁰
c)
-275⁰
60.
What are the negative and positive coterminal angles of -225 degrees?
a)
375°, -600°
b)
125°, -356°
c)
135°, -585°
d)
60°, -120°
61.
What is 11π/6 radians in degrees? 
a)
30
b)
330
c)
360
d)
 300
62.
What is 0 degrees in radians? 
a)
2π 
b)
0
c)
π
d)
 π/2
63.
What is 150 degrees in radians?
a)
5π/6
b)
7π/6
c)
5π/4
d)
π/6
64.
What is 360 degrees in radians? 
a)
2π/3
b)
5π/4
c)
d)
π
65.
What is 7π/6 radians in degrees?
 225⁰ 210⁰ 270⁰ 240⁰
a)
225
b)
210
c)
270
d)
240
66.
What is 120 degrees in radians?
 
a)
2π/3
b)
π/3
c)
5π/3
d)
4π/3
67.
What is 2π/3 radians in degrees? 
a)
150
b)
120
c)
180
d)
 30
68.
What is 240 degrees in radians? 
a)
π/3
b)
4π/3
c)
5π/3
d)
2π/3
69.

What is 270°270\degree  in radians?

a)

π4\frac{\pi}{4}

b)

3π2\frac{3\pi}{2}

c)

3π4\frac{3\pi}{4}

d)

π2\frac{\pi}{2}

70.

What is  225°225\degree   in radians? 

a)

7π4\frac{7\pi}{4}  

b)

5π4\frac{5\pi}{4}  

c)

3π4\frac{3\pi}{4}  

d)

5π3\frac{5\pi}{3}  

71.
Convert the following to radians:   
720⁰
a)
b)
c)
72.
Convert 100⁰ to radians
a)
5π/9
b)
π/2
c)
5π/8
d)
5π/6
73.

To convert from degrees to RADIANS

a)

multiply by

π180°\frac{π}{180°}

b)

multiply by
180°π\frac{180°}{π}

c)

multiply by
π2\frac{π}{\sqrt{2}}

d)

multiply by
π3\frac{π}{\sqrt{3}}

74.
Convert 330⁰ to radians
a)
11π/6
b)
11π/3
c)
11π/9
d)
7π/6
75.
What is 45 degrees in radians?
a)
π/2
b)
π/6
c)
π/4
d)
3π/4
76.

Convert 510o to Radians

(a)  
Choose from the below words
25π / 3
23π / 8
17π / 6
51π / 8